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HIS HD 6770 Fan

H677FN1GD
Graphics Processor
Juniper
Cores
800
TMUs
40
ROPs
16
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
128 bit

Graphics Processor

GPU Name
Juniper
GPU Variant
Juniper XT
(215-0754013)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
1,040 million
Die Size
166 mm²

Graphics Card

Release Date
Jan 21st, 2011
Apr 20th, 2011
Generation
Northern Islands
(HD 6700)
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Clock Speeds

GPU Clock
850 MHz
Memory Clock
1200 MHz
4800 MHz effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
76.80 GB/s

Render Config

Shading Units
800
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
8 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
13.60 GPixel/s
Texture Rate
34.00 GTexel/s
FP32 (float) performance
1,360 GFLOPS

Board Design

Slot Width
Dual-slot
Length
198 mm
197 mm
7.8 inches
TDP
108 W
Suggested PSU
350 W
Outputs
2x DVI
1x HDMI
2x mini-DisplayPort

2x DVI
1x HDMI
1x DisplayPort
Power Connectors
1x 6-pin
Board Number
C010

Graphics Features

DirectX
11.2 (11_0)
OpenGL
4.4
OpenCL
1.2
Vulkan
N/A
Shader Model
5.0

Card Notes

HD 5770 rebrand

Juniper GPU Notes

Architecture Codename: Evergreen
Graphics/Compute: GFX4
Display Core Engine: 4.0
Unified Video Decoder: 2.3

Other retail boards based on this design (13)

Name GPU Clock Memory Clock Other Changes
ASUS HD 6770 DirectCU Silent 850 MHz 1000 MHz 290 mm/11.4 inches, 1x DVI 1x HDMI 1x VGA
HIS HD 6770 Fan 850 MHz 1200 MHz 197 mm/7.8 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 Fan 850 MHz 1200 MHz 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 IceQ X 850 MHz 1200 MHz 230 mm/9.1 inches, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6770 IceQ X Turbo 880 MHz 1250 MHz 230 mm/9.1 inches, 2x DVI 1x HDMI 1x DisplayPort
MSI HD 6770 850 MHz 1200 MHz 208 mm/8.2 inches, 1x DVI 1x HDMI 1x DisplayPort
MSI HD 6770 800 MHz 1100 MHz 200 mm/7.9 inches, 1x DVI 1x HDMI 1x VGA
MSI HD 6770 Twin Frozr II OC 875 MHz 1200 MHz 208 mm/8.2 inches, 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 775 MHz 1000 MHz 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 850 MHz 1200 MHz 512 MB, 186 mm/7.3 inches, 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 FleX 850 MHz 1200 MHz 186 mm/7.3 inches, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6770 Vapor-X 860 MHz 1200 MHz 201 mm/7.9 inches, 2x DVI 1x HDMI 1x DisplayPort
VTX3D HD 6770 V2 850 MHz 1200 MHz Single-slot, 1x DVI 1x HDMI 1x VGA